Using the same coding system, what is the code for the word 'DOG'?

A. 4-15-7

What letter comes next in the series: z, x, v, t, ?

A. S

Tree is to Forest as Star is to ?

A. GALAXY

Identify the missing letter in the series: a, e, i, o, ?

A. U

If '?' represents addition, '?' represents subtraction, '?' represents multiplication, and '?' represents division, which of the following equations is correct? 12 ? 4 ? 2 = 8 ? 4?

A. TRUE